Security Basics mailing list archives

Re: Question on Blocking an ISP.


From: "Byrne Ghavalas" <security () nscs uk com>
Date: Tue, 3 Dec 2002 17:12:32 -0000

Hi,

Out of curiosity - does your mail server not allow you to reject all mail
from *@aol.com?

Would that not be a little easier than blocking all of their IP addressing
blocks?

Then again, there are some other benefits to blocking them at an IP level
<g>

Byrne G

----- Original Message -----
From: "Chris" <chris () jynx net>
To: <security-basics () securityfocus com>
Sent: Saturday, November 30, 2002 9:21 AM
Subject: Question on Blocking an ISP.


As of the last couple weeks, from 1 aol users i have gotten over 1000+
virus
emails.
These emails are your tipical freescreensaver virus that has been going
around for years now. It seems this person has an affected system.  This
is
not really my question or concern.

I have been scanning though all the headers getting the proxy email
servers
aol uses, but it seems like a endless list. LOL.

I'm blocking these ips though IPchains, but i really would like to know
how
to get every class owned by aol so i can block them all.

Receiving mail from aol is no big thing to me, considering 99.9% of the
time
is junk or spam.

Is there some way to whois arin on a nic handle to get all the classes?

Thank you.
-chris





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